tool: y+po

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Language:	Y (cross between C and Ratfor)
Version:	?
Parts:	compiler
Author:	Jack W. Davidson and Christopher W. Fraser
Location:	ftp://ftp.cs.princeton.edu/pub/y+po.tar.Z
Description:	Davidson/Fraser peephole optimizer PO [1-3] [where the GCC RTL idea and other optimization ideas came from] along with the Y compiler [cross between C+ratfor] is ftpable from ftp.cs.princeton.edu: /pub/y+po.tar.Z. It is a copy of the original distribution from the University of Arizona during the early 80's, totally unsupported, almost forgotten [do not bug the authors] old code, possibly of interest to compiler/language hackers.
Reference:	Jack W. Davidson and Christopher W. Fraser, "The Design and Application of a Retargetable Peephole Optimizer", TOPLAS, Apr. 1980. Jack W. Davidson, "Simplifying Code Through Peephole Optimization" Technical Report TR81-19, The University of Arizona, Tucson, AZ, 1981. Jack W. Davidson and Christopher W. Fraser, "Register Allocation and Exhaustive Peephole Optimization" Software-Practice and Experience, Sep. 1984.
Status:	history
Updated:	?

category: mathematical tools and languages summary, or expanded.